<%@ page language="java" contentType="text/html; charset=UTF-8"
	pageEncoding="UTF-8"%>
<div id="_idTopControl" title="回到顶部" style="display: none;">
	<img class="img" border=0 src="/simpleos/template/_top.jpg">
</div>
<script type="text/javascript">
	$ready(function() {
		var tc = $("_idTopControl").observe("click", function() {
			window.scrollTo(0, 0);
		});
		Event.observe(window, "scroll", function() {
			var scrollTop = document.documentElement.scrollTop
					|| document.body.scrollTop || 0;
			tc.style.display = scrollTop > 1 ? "" : "none";
		});
	});
</script>